Solution: The quantum-mechanical treatment of the hydrogen atom gives this expression for the wave function, ψ, of the 1s orbital:where r is the distance from the nucleus and a0 is 52.92 pm. The probability of

The quantum-mechanical treatment of the hydrogen atom gives this expression for the wave function, ψ, of the 1*s* orbital:

where *r* is the distance from the nucleus and *a _{0}* is 52.92 pm. The probability of finding the electron in a tiny volume at distance